Carriage-actuating mechanism for reproducing-machines.



v B. -0-. FANSKQW D'ARRIAGE AOTUATI NG MECHANISM FOR REPRODUGING MACHINES.

Patented Dec. 17, 1912.

APPLICATION IIILED MAY 11, 1909.

WITNESSES:

FATE-i l QFFQ,

BENJAMIN O. :FALISLOW, F WILLIAMSPORT, PENNSYLVANIA, ASSIGNOR TO .PGLYGRAPH DUPLICATING TYPEWRITER COM?ANY, OF NEW YORK, N. Y.,

A. CORPORATION GIE NEW YOBK.

CABRIAGE-ACTUATING MECHANISM FOR REPItODUCING-MACHINES.

incense.

Specification of Lette'rsifatent.

Patented Dec. 1?, 1912.

Application filed May 11, 1909. Serial No. 295,303.

To all "whom it may concern:

Be it known that I, BENJAMIN U. FANS- Low, a citizen of the United States, residing in Viillinmsport county of Lycoming, and

' State of Pennsylvania, have invented a new and useful. Improvement in Carriage-Aetw sting Mechanism for Reproducing-Machines of which the followingis a description.

This invention relates to duplicating printing machines and particularly to the type thereof which has become known to the trade by my designation oi polygraphf and the invention especially relates to the carriage-actuating mechanism of such and other similar types of machines.

Among the objects of my invention may he noted the following: to provide a cheap, compact andsifnple structure by means of i" ich the carriage may he. driven along the of the macuine a maximum distance with a minimum amount of cliort and angumovement of theactuating leven; L0 prois an elhaciive and positive drivi means which moves bodily with for the carria"e, the latteixduiing its actuating movements relatively to the latter; to provide a carriage-drivingmechanism of a character such only partial rotation of the actuathigor crank is necessary to drive the care ron: end to end of the tremolo either 311; and to provide a simple and positive driving means for the carriage which ummmpanies the latter throughout all its vol on the frame and which is rezzdovuble with the carriage from the frame, and removable i om and adjustable to the carriage.

ease and expedition. 1th the above objects in view, and others lCll wih be detailed during the course of elements and comhina r. r 4 5 m- 1 1 is iuicinauel @Scll so one v to the drawingstorn'iing' part d scription: Figure 1 is a side ole ion of a polygraph with parts broken ay to i lliytrate details or. the carriageshowing" pa s the carriage rotor in elevainy inventive. consists in chai isni; atrensverse,

, 3 is 'a side eleven-- tee :inachuie with certa n to disclose certain details.

Referring to the figures, the numeral 1 indicates the frame of the machine from the central bed 2 of which, on its opposite sides, longitudinal overhanging rails 3 are extended, the top surfaces of which are smooth and the under surfaces of which are grooved for the reception of anti-friction rolls 4, which travel therein and which are journalcd at the lower ends of the legs 5 of the carriage 6, which, at its top, .is provided with the bridge 7 beneath which, in the opposits ends of the carriage, the impressionroller 8 is journaled by means of its shaft 5), extending from opposite ends thereof into the slidabl-e journal-blocks 10 and 11, disposed at opposite ends of the carriage, respectively, in the-crotch 12 between the legs 5. The impi'cssiomrollei- 8 is provided with the yielding rubber surface 13 and at its opposite ends with the resilient or elastic rims or tires 14, which rest in tractio-n with the smooth surface of the rails 3. v The bed 2 of the frame receives upon it the composition from which the impression is taken through the mcdium -of a ribbon extending over the surface of the same, and between said surface and [he im n'ession-roller 8,;und which ribbon is supported by and wound upon spindles at opposite ends of the frame which are intermittently actuated by ratchetwheelsand leed-pawls, all as shown in my companion application executed of even date herewith Serial No. 495.302. Each of the bearings 10 and 11 freely slidable in the crotch 12 of the carriage and is adjustable therein by means otthc screw 27 tapped througlrthe lug- 28 of the carriage and havparts removed and other parts broken away its end impinging upon the topoi said ried hy the opposite ends of the impression- I roller, 8. I ,7 v

From this construction, it will be seen that, though the, journal-blocks 10 and 11 are freely slidable between the legs 5 of the carriage, they, nevertheless, are held in positi'on therein by reasonof the fact, that the journal or shaft 9 0f "theiig npgession rollr passes therethrough and since the roller is supported by the rails 3 of the frame, as clearly indicated in Fig. 2. Obviously, the

resiliency of the elastictires 14 of the impression-roller keeps the anti-friction rolls 4: in proper engagement with their running grooves in the rails 3 and the adjust-mentof the bearing-blocks 10 and 11, by the screws 27, brings about sufficient tractional friction between the surfaces of the rails 3 and the tires 14 to produce a rotary driving actionof the impression-reller 8 when the carriage is bodily moved longitudinally of the frame. The bearing-blocks 10 and 11 are each pre vented from having any movement longitu dinally of the roller 8, by reason of embrac-- ing flanges, particularly shown in Figs. 2 and 3 on the block 11 and therein indicated by 11 said flanges extending along the longitudinal edges of the block and embracing opposite sides of the two legs 5. The flanges on block 10 are not shown, since their illustration in connection with block 11 isdeemed sufficient. To produce this bodily movement for convenient manipulation of the lever.

or travel of the carriage longitudinally of the frame and, simultaneously therewith, the rotation of the impression-roller 8, with a minimum amount of movement of the actuating lever or crank, I provide mechanism.

.or segmental poriion 31 of the lever is hollowed out to'provide the-flange 35, the inner periphery of which is formed with teeth 36, r

with which cooperate a pinion 37 fixed upon the outer end of the shaift'or journal 9 of the impression-roller 8. The outer. end of the lever is given the form of a yoke 38,'thc arms of which are-connected by a handle 39 Thepinion 37 is of a size such that, in co operating with the long segmental rack 36, the movement of the lever from the position shown in Fig. 1 to a'corresponding position I on the opposite side will be suflicient to cause the travel of the carriage from one extreme end of the frame to the other extreme cndthereof. Hence, but a. comparatively small movement is necessary to secure the complete travel of the carriage along the frame from end to end and the drive of the carriage and rotation'of the in'ipressi0nroller is positive and powerful.

The movement of the carria e at o ositeends of the frame is limited by. means of thcadjustable stop-plug 40, which may be :thifted from one to the other of the holes it l-l' at the respective ends of the frame.

From the foregoing description, it will be understood that, with 'a single movement of the crank or lever 30 of less than-one-half revolution, the entire carriage can be trav: ersed from one end .to the other of the machine .and simultaneously therewith the impression-rollercan be rotated considerably more than a complete revolution and substantially one and one-half revolutions, thus distributing the wear and tear on the impression-roller, over the entire circumference and from end to end thereof. Furthermore, it will be seen that, irrespective of the-adjustn 'ent of the bearing-blocks so as to create more or less traction between the elastic tires 14 and the traction surfaces of the rails 3, the leverage of the driving mechanism is sufficient, and so powerful as, to make the drive of the carriage comparatively easy and with little or no resistance, arid that the drive of the impression-roller in both directions will'be posit-ive'and certain; and it will also be understood that, though the driving mechanism is located entirely on one side of the carriage andof the machine, no binding 'or retarding action is created thereby, since the balance of the carriage is such and the cooperation of its antifriction rolls 4 with the grooves of the rails 3, and the cooperation of the latter with the elastic. tires 14 are such as to overcome any tendency toward binding and to produce perfect -steadiness of action without in any man ner detracting from the posltiveness of the drive of'the carriage and the rotation of the cylinder, and the ease of movement of the actuating crank or lever.

Having thus describ d my invention, what I claim and desire to secure by Letters Patcut is:

1. In combination, a supporting-frame; a

carriage mounted to travel on the'frame; an impression-roller journaled in the carriage; means producing frictional engagement be tween the frame and the roller; and means for causing the carriage to travel on the frame and the roller to rotate relatively thereto, comprising a substantially semi-circular rack and a pinion cooperating therewith, both mounted upon the carriage, said rack having a handle extending therefrom whereby it may be manipulated to move the carriage on the frame and rotate the roller on the carriage. i

2. In combination, a supriortingframe; a carriage mounted to travel on the frame; an impression-roller journaled in the carriage; means producing frictional engagement between the frame and the roller; and means for causin the carriage to travel on the frame and the roller to rotate relatively thereto, comprising a substantially semi-circular rack and apinion cooperating therewith, both mounted upon the carrlage, said rack having a handle extending therefrom frame during substantially a half rotation LOQJLES? 2% whereby it may be manipulated to move the In testimony whereof I have hereunto carriage on the frame and rotate the roHer 5 signefi my e in the presence of two subon the carriage the ratio between the rank i SCTPniDg; 2 am the pinion being sufiicient to cause the carriage to travel from end to end of the tMl'N U. FANSLC W Witness s S. Mei). CHAPMAN,

FLORENCE 1 3ml? of the rack. 

